Make sure your concealer is as close to your natural skin colour as possible. Go for one that is slightly one or two shades lighter than your foundation.
Put your concealer on first before you put on your foundation.
Don’t just grab a huge blob of it and plonk it on to your face, you need to gradually build up coverage to create a natural look.
Dab a little bit on to your face using the pad of your middle finger. Don’t rub as you will just pull your skin and create unnecessary lines, especially if the concealer is quite thick.
Use loose powder to set the concealer although you only need to use it sparingly otherwise it can look cakey.